"1929Z"^^ . "Shepard, Roger"@en . "Roger Newland Shepard (born January 30, 1929 in Palo Alto, California) is a cognitive scientist and author of the Universal Law of Generalization (1987). He is considered a father of research on spatial relations. He studied mental rotation, and was an inventor of multidimensional scaling, a method for representing certain kinds of statistical data in the plane or in space with minimal distortion, so that it can be apprehended by humans."@en . "1929-01-30Z"^^ . "American psychologist" .